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Finding the Fourth Proportional to 763,956.93, 1,054,198.85 and 441,687.80

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Solution

The fourth proportional to 763,956.93, 1,054,198.85 and 441,687.80 is: 609,493.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,956.93 : 1,054,198.85 = 441,687.80 : x
  2. Step 2: Convert to fraction form
    763,956.93/1,054,198.85 = 441,687.80/x
  3. Step 3: Cross multiply
    763,956.93x = 1,054,198.85 × 441,687.80
  4. Step 4: Simplify right side
    763,956.93x = 465,626,763,339.60
  5. Step 5: Solve for x
    x = 465,626,763,339.60/763,956.93
  6. Step 6: Final answer
    x = 609,493.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.